Costco Versus Sam’s Club: the War Between Retail Competitors Has a Clear Winner

Sam's Club uses its own brand, Member’s Mark, to compete with Costco’s Kirkland Signature.

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The battle between big-name brands and store brands has been ongoing for years.

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Basic items like toilet paper and trash bags are often very similar across different brands.

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Specialty foods and clothing, however, show more differences in quality and style.

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Even though they have the same number of stores, Costco makes twice as much money as Sam’s Club.

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Sam's Club wants to copy Kirkland's success by offering high-quality items under its own brand.

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You need a membership to buy private label products at both Costco and Sam’s Club.

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Member’s Mark makes up 30% of Sam’s Club's sales, while Kirkland Signature makes up 28% of Costco's sales.

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